GPII-267: Logged user token is generated on server-side.
Currently, it is preserved within the GPII store. Maybe it should be preserved in GPII with a "/login" and know about it later on with this http://issues.gpii.net/browse/GPII-290.
GPII-265: When new token is created, log in the new user.
GPII-265: Helpful comment addition.